Following the news of Lisa's departure from the TODAY show last night, Billi FitzSimons Instagrammed a photo of herself and her mum giving the camera a thumbs up.

"Thank you, Mum, for paving the way for the next generation and every generation to come," Billi, 20, captioned the pic, which was taken during a fitness class. "You are a leader and an inspiration for so many tonight. I can't wait to see you at the breakfast table tomorrow morning 😍😍😍."

On Monday night, Lisa announced she had presented the TODAY show for the final time.

In a statement, Nine said it was "disappointed" that the 57-year-old would not be continuing in the role, adding that the show would be going in another direction.

Lisa Wilkinson and Billi FitzSimons. Image: Getty

"We have been unable to meet the expectations of Lisa Wilkinson and her manager on a contract renewal for a further period. We express our gratitude to Lisa for her 10 years with the Today Show and are disappointed we find ourselves in this position. Nine will be going in another direction and will be considering our options in the coming weeks and months."

Lisa shared the statement - which included her own personal message - in a tweet.

"I want to thank Channel Nine for the privilege of co-hosting the Today Show for the last ten years," she said. "I would particularly like to acknowledge my colleagues Karl, Sylvia, Georgie, Tim, Richard, Stevie and Natalia, as well as all the hard working producers and the entire team behind the cameras - every one of them has contributed to the incredible success of the show."

Not long after, Lisa announced she had accepted a presenting role on Ten's The Project.